Answer the Following Questions Using the Information Below:
the Nowra

Multiple Choice

Answer the following questions using the information below:
The Nowra Company has assembled the following data pertaining to certain costs that cannot be easily identified as either fixed or variable.Nowra Company has heard about a method of measuring cost functions called the high-low method and has decided to use it in this situation.
$$\begin{array} { l r r } \text { Month } & \text { Cost } & \text { Hours } \\\text { January } & \$ 40000 & 3500 \\\text { February } & 24400 & 2000 \\\text { March } & 31280 & 2450 \\\text { April } & 36400 & 3000 \\\text { May } & 44160 & 3900 \\\text { June } & 42400 & 3740\end{array}$$
-The coefficient of determination is important in explaining variances in estimating equations.For a certain estimating equation,the unexplained variation was given as 51 900.The total variation was given as 115 333.What is the coefficient of determination for the equation?

A) 0.66
B) 0.55
C) 0.57
D) 0.45